Pelican Bay inmate dies from injuries in assault

CRESCENT CITY, Calif. 
Officials say an inmate at Pelican State Prison is under investigation for the death of his cellmate.

Officials at the California Department of Corrections and Rehabilitation announced Tuesday that they believe 41-year-old David Martinez killed his cellmate, 51-year-old James Lambert. Lambert was found unconscious in his cell on April 19, and died on May 1.

Lambert was serving a 41-years-to-life third-strike sentence from Los Angeles County for assault with force.

Martinez is serving a life sentence without parole from Los Angeles County for first-degree murder.